REPORT ON THE DEEP-SEA DEPOSITS. 
481 
125. Manganese Nodule (internal portion). — Station 285. 
Lat. 32° 36' S., long. 137° 43' W., 2375 fathoms (Brazier). 
Acid = 80 '30 
Acid = 6 '10 
125a. 1 
Lat. 32° 36' S., 
long, 
Portion soluble in Hydrochloric ) _ 
Acid = 58 '52 i 
Loss on ignition after drying at 230° Fahr., 
. 13-60 
r Copper, ..... 
trace 
Alumina, ..... 
9-50 
Ferric oxide, .... 
18-98 
Calcium phosphate. 
trace 
Manganese oxide, .... 
13-98 
Calcium sulphate, .... 
trace 
Calcium carbonate, .... 
3-00 
Magnesium carbonate. 
1-04 
.Silica, ..... 
. 33-80 
r Alumina, ..... 
1-15 
Ferric oxide, .... 
2-00 
Lime, ..... 
0-45 
Magnesia, ..... 
0-14 
.Silica, ..... 
ANESE Nodules. — Station 285. 
137° 43' W., 2375 fathoms (Brazier). 
2-36 
100-00 
Loss on ignition after drying at 230° Fahr., 
. 23-40 
' Copper, ..... 
good trace 
Alumina, ..... 
8-15 
Ferric oxide, .... 
12-75 
Calcium phosphate. 
0-90 
Manganese oxide, .... 
22-20 
Calcium sulphate, .... 
0-75 
Calcium carbonate, .... 
4-15 
Magnesium carbonate. 
0-14 
-Silica, ..... 
9-62 
f Alumina, ..... 
3-33 
Ferric oxide, .... 
1-44 
Lime, ..... 
0-99 
Magnesia, ..... 
good trace 
-Silica, ..... 
12-18 
100-00 
Portion insoluble in Hydrochloric \ _ 
Acid = 18-08 
125b. Manganese Nodule (internal portion). — Station 285. 
Lat, 32° 36' S., long. 137° 43' W., 2375 fathoms (Anderson). 
Loss on ignition after drying at 100° C., . 
f Alumina, . 
j Ferric oxide, 
Portion soluble in Hydrochloric \ ^ 
Acid = 42 -78 J 
Portion insoluble in Hydrochloric ^ 
Acid = 47-45 1 ~ 
Manganese dioxide. 
Magnesia, . 
Potash, ' . 
Soda, 
Phosphoric acid, 
L Silica, 
Alumina, . 
Ferric oxide. 
Magnesia, . 
Potash, 
Silica, 
9-32 
9-17 
13-90 
10-46 
0- 57 
1- 84 
2- 15 
0-22 
4-47 
3- 65 
3-00 
0-89 
0-68 
39-23 
99-55 
Note, — The material was white or brownish white, and was easily cut with a knife ; it contained 14-95 per cent, of moisture, 
very light in weight, and fused into a blackish glass. 
(deep-sea deposits chall, exp. — -1891.) 
63 
